baber/WOPTO huggingface dataset:
Patent DE-3108647-A1 (DE)
Title: Subscriber connection circuit
Inventor: MINCH MORRIS L
IPC: H04B3/03
Filed: 1981-03-06
Abstract: The hybrid circuit of a subscriber connection circuit of this type is intended to be implementable with good transmission characteristics and at low circuitry cost. This is achieved according to the invention in that the non-inverting inputs of two operational amplifiers (OP1, OP2) which are disposed in the receive arm of the four-wire line are in each case connected to a DC reference voltage, in that the receive arm (VE) of the four-wire line is connected to the non-inverting input of the first of the two operational amplifiers (OP2), in that the output of this operational amplifier is connected via a resistor (RF) to the a-wire of the subscriber connection line and via a further resistor (RK) to the inverting input of the second operational amplifier (OP1) whose output is connected via a resistor (RF) to the b-wire of the subscriber connection line. <IMAGE>
Patent DE-3108949-A1 (DE)
Title: Container with a lid
Inventor: SCHATZ OTTO
IPC: B65D43/02
Filed: 1981-03-10
Abstract: Integrally formed on the inside of the bin opening is a collar which projects upwards and serves as an abutment for a collar which is arranged on the lid, projects downwards, engages behind the first collar when the lid is loaded and thus prevents the bin wall from bulging. Furthermore, a counterbearing is allocated to an annular bearing, which is integrally formed on the inside of the bin edge and is intended for the bin lid, the counterbearing being arranged above said lid and likewise being annular. The counterbearing reaches over the edge of the lid and thus secures the lid against being unintentionally released from the bin opening.
Patent DE-3109683-A1 (DE)
Title: Device for the circular plaiting of pieces of dough
IPC: A21C7/01
Filed: 1981-03-13
Abstract: The invention relates to a device for the circular plaiting of pieces of dough, having plaiting surfaces which are arranged so as to form an approximate V-shape in cross-section, extend longitudinally in a linear fashion and take the form of endless belts, the line running through the centre of the V-shaped arrangement being inclined with respect to the horizontal at an angle which is less than 90 DEG  and greater than 20 DEG  and the upper plaiting belt being provided with an adjustable drive and arranged on an adjustment carriage which can be displaced in a linear fashion with respect to the plaiting gap and has a motor-driven cam which is able to operate the plaiting belt. The lower plaiting belt is provided with an adjustable motor. The drives of the plaiting belts and the drive of the cam are reversible.
Patent DE-3110841-A1 (DE)
Title: Method for controlling the braking current in an electrical braking device for three-phase motors, and a braking device for the arrangement of this method
Inventor: FAISST KURT
IPC: H02P3/24
Filed: 1981-03-20
Abstract: In the case of the method for controlling the braking current in an electrical braking device, which operates on the principle of DC braking, for three-phase motors, the braking current is applied to at least one motor winding and the duration for which said braking current is applied is controlled by a generative voltage which is picked off from at least one motor winding as a control voltage as the motor runs down, and is interrupted without delay when the generator voltage remains off after the motor has stopped. The braking device is equipped with a braking current source, which comprises a rectifier circuit and can be connected to at least one motor winding via a trip circuit when the motor switch is changed to "OFF", in order to supply said motor winding with DC as the braking current, and is equipped with a control circuit for defining the time duration over which the braking current acts, which control circuit contains an integrated circuit which is connected as an amplifier and can be connected to at least one motor winding as a function of the motor being switched off.
Patent DE-3122629-A1 (DE)
Title: Punching apparatus for punching regularly distributed slots in the circumference of tube sections, in particular into tube sections for star blades of dough dividing machines
Inventor: SCHMIDT KARL
IPC: B21D28/28
Filed: 1981-06-06
Abstract: In a punching apparatus for punching regularly distributed slots (7) in the circumference of tube sections (8) for star blades of dough dividing machines, high precision in the relative positions of the slots at different pitches is required. The punching device has a frame (1), a die (3) mounted on the latter and a punching head (13) which can be moved relative to the die (3) and carries a punch (6). A holding part (5) which engages on the end of the tube section (8) is provided. This holding part has a centrally arranged axle stub (16) which is connected to the axle (23) of a dividing apparatus, a dividing plate or the like (21) provided on the frame (1). <IMAGE>
Patent DE-3124316-A1 (DE)
Title: Drawing apparatus
Inventor: BUCKEL HARTMUT
IPC: B43L5/00
Filed: 1981-06-20
Abstract: In a drawing apparatus with a device for reducing the drying time of the drawing ink, especially for sheets of drawings consisting of transparent plastic films, the working substrate for the drawing sheet which is to be positioned consists of a drawing board (1) with good heat conductivity which is provided with means (3, 5, 6) for the heating thereof. In particular, the drawing board (1) is heated by means of electrical heating elements. To this end, an electrical heating cable (3) is used which has silicone rubber insulation and is laid in meander-shaped channels (2a) of a support plate (2). <IMAGE>
Patent DE-3124593-A1 (DE)
Title: Method and apparatus for the timed pressurised metering of liquids
Inventor: DYSHLENKO ALEXANDR T
IPC: B22D39/06
Filed: 1981-06-23
Abstract: The invention relates to the metering of liquids. The method consists in raising the liquid level in a pouring tube (2) by increasing the pressure acting on this fluid. The time at which the poured stream begins to flow is recorded by means of a monitored flow cross-section, the liquid is poured out under the action of the pressure, which is controlled in accordance with a programme, and the pressure is then reduced. According to the invention, the pressure increase is performed at a constant rate, the change in pressure in accordance with the programme is performed with reference to a pressure detected upon flow through the monitored flow cross-section, and the pressure reduction is carried out at a constant rate. The rates of pressure change in all the metering cycles are kept the same. The apparatus has a pouring tube (2) which is connected to the tank (1) and is filled with the liquid to be metered. It furthermore comprises an electromagnetic pump consisting of an inductor and an electromagnet. The winding of the electromagnet is supplied via a voltage transformer (17). A control system specifies the characteristic of the pressure change and, in accordance with this, the voltage transformer (17) produces pulses of the required amplitude, which pass to the LC circuit formed by the winding of the electromagnet and a capacitor (14) connected in parallel with the latter. The pulse frequency is equal to that of the inductor current and the capacitance of the capacitor (14) is chosen so that the frequency of the free oscillations of the LC circuit is within a range of from 1 to 1.5 times the pulse frequency at the output of the voltage transformer (17). The invention provides an apparatus for maintaining constant rates of pressure change in the event of fluctuations in the supply voltage. The invention is used principally in the metering of agressive high-temperature molten substances. <IMAGE>
Patent DE-3125382-A1 (DE)
Title: Adaptor for mounting a bit in an electropneumatic percussor hammer drill
Inventor: SCHROTH GERHARD
IPC: B23B45/16
Filed: 1981-06-27
Abstract: The adaptor is provided at its front end with a quick-change chuck for a small bit (11) and at the other end with a plug-in shaft so that it can be plugged into a high-output percussor hammer drill. The plug-in shaft contains a damping element (20), the weight of which is many times less than the weight of the adaptor (10) and which can be acted upon directly by the impact element of the percussor hammer drill. The damping element (20) substantially reduces the characteristic oscillations and therefore the harmful heating in the quick-change chuck, so that a long life is ensured even when plastic components are used in the quick-change chuck. <IMAGE>
Patent DE-3128691-A1 (DE)
Title: Dead-man switch
Inventor: SCHULTE SIEGFRIED
IPC: B60L3/02
Filed: 1981-07-21
Abstract: A dead-man switch having a dead-man lever, supported such that it can pivot about a pivoting axis, for operating a switch key. The technical problem is to permit switching on only once after each unlocking. A projection (9) on the dead-man lever (5) has an end limb (10), aligned on a circumferential curve with respect to the pivoting axis (4), having a chamber (11) in radial alignment with respect to the pivoting axis (4). An unlocking key (15), stressed by a restoring spring (19), has a slide (17) which is aligned radially onto the pivoting axis (4) and the chamber (11), and can engage with a tab (21) into the chamber (11).
Patent DE-3134501-A1 (DE)
Title: Ultra high frequency plasmatron and an installation for obtaining very finely divided powder
Inventor: CEBANKOV NIKOLAJ IVANOVIC
IPC: C01B21/06
Filed: 1981-09-01
Abstract: The ultra high frequency plasmatron contains a coaxial cable, which is connected to an energy (power) source, and two radial cables (5). A common conductor of the radial cables (5) is configured in the form of a disc (6) which is connected to a centre conductor (3) of the coaxial cable. The two other conductors are configured by the end surfaces of a cylinder (7) which encloses the disc (6). One end surface of the cylinder (7) is connected to an outer conductor (8) of the coaxial cable, and a central opening is configured in the other end surface, through which a discharge chamber (4) passes, which is attached to the end of the centre conductor (3). The installation for obtaining very finely divided powders, in which the described plasmatron is used, also contains an assembly (10) for insertion of the original material, a reactor (11), a filter (12) and a powder collector (13). The reactor (11) is configured in the form of a truncated cone on whose upper base surface the plasmatron and the filters (12) are arranged. The powder collector (13) is connected to the lower base surface of the reactor (11). The assembly (10) is configured in the form of a probe which passes through the hollow centre conductor (3) of the coaxial cable. <IMAGE>
Patent DE-3146349-A1 (DE)
Inventor: LORENZ JUERGEN W
IPC: A61L2/26
Filed: 1981-11-23
Abstract: A sterilizer container comprising a lower base portion, cover, and an intermediate cover which is installed in a sealing manner on the inwardly drawn edge of the lower base portion. The cover includes an overlapping flange. A flow passage, leading to a tortuous path, is defined by the overlapping flange of the cover and the inwardly drawn edge of the lower base portion. The exchange of fluent media between the interior and the exterior of the container takes place through the flow passage and the tortuous path. The intermediate cover is connected with the cover in a detachable manner and has perforations in its middle segment which are covered by a filter. This filter is pushed against the peripheral segment of the intermediate cover by means of a sealing ring which is supported by the cover. The intermediate cover can be provided with valves effective in two directions in place of perforations whereby an equalization of pressure is possible. In this case, the filter is omitted.
Patent DE-3200108-A1 (DE)
Title: Dusty gas filter
Inventor: WAGENER KLAUS DIPL ING DR
IPC: B01D46/00
Filed: 1982-01-05
Abstract: A dusty gas filter is described which has pocket-shaped filter elements divided by longitudinal seams into filter element sections. A support structure of polygonal cross-section, which essentially consists of support rods parallel to one another and to the longitudinal plane of the filter element and arranged at equal distances, extends into each filter element section. A jet tube for guiding the purge gas for cleaning the filter element sections extends into each filter element section enveloping the support structure. Since all the wall sections of the filter elements execute almost the same changes in shape during cleaning off, the novel dusty gas filter combines the advantages of the compact construction of the known pocket-type filters with the advantage of effective cleaning of hose filters.
Patent DE-3201842-A1 (DE)
Title: Pressure valve for radial and axial piston pumps
Inventor: OTT JOSEF ING GRAD
IPC: F04B1/18
Filed: 1982-01-22
Abstract: Pressure valve for radial and axial piston pumps having a plurality of pump cylinders, which are arranged distributed about an axis and in which pistons are displaceable which are driven by a common drive to perform a successive reciprocating movement about the axis. The pressure valve has an annular valve seat, common to all pump cylinders, in which seat the pressure ducts (13), for the pressure valve, coming from the individual pump cylinders (13) open out with duct apertures distributed over the circumference of the valve seat. A sprung valve tongue (17), designed as a double tongue, is assigned to each two adjacent pressure ducts (13), which tongue is fixed at its centre, for example by a corrugated circlip (18), and each controls a duct aperture by means of its ends. <IMAGE>
Patent DE-3205072-A1 (DE)
Title: Process for the preparation of aromatic polycarbamates and polyisocyanates
Inventor: RYU JI-YONG
IPC: C07C271/06
Filed: 1982-02-12
Abstract: The invention relates to the preparation of aromatic polyisocyanates by a multi-step process, in which the following steps are carried out in succession: ammoxidation of alkylated aromatic compounds, for example, toluene; hydrolysis of the aromatic nitrile; conversion of the resulting amide into a carbamate; condensation with a carboxyl-containing compound, for example an aldehyde, decomposition of the condensation product, and recovery of the aromatic polyisocyanate.
Patent DE-3207815-A1 (DE)
Title: Control device for controlled systems with variable system gain
Inventor: LINZENKIRCHNER EDMUND DIPL ING
IPC: G05B11/18
Filed: 1982-03-04
Abstract: This control device consists of a controller (R) with multi-step switching element (1), integral-action actuator (2), controlling element with non-linear transfer characteristic (3) and an adaption element (AG) for the automatic optimisation of the dead-band width (T) of the multi-step switching element (1). If several, preferably three control pulses of alternating polarity occur at the output of the multi-step switching element (1) within a time interval corresponding to the period of the slowest continuous oscillation within the control loop, a control signal (z) increasing the dead-band width (T) by a certain amount is generated as a function thereof in the adaption element (AG) and is supplied to the control input of the multi-step switching element (1). Thereafter, the dead band is again reduced with a large time constant until the alternating-polarity control pulses again occur and the cycle begins again. In this manner, the dead band, on which the control accuracy depends, can be continuously adapted in the switching controller to a changing system gain ( DELTA x/ DELTA y), particularly in the case of flow or pressure control systems with little delay. <IMAGE>
Patent DE-3208671-A1 (DE)
Title: Upright decorative arrangement
Inventor: BOES FRIEDRICH GEORG
IPC: A47G35/00
Filed: 1982-03-10
Abstract: In this decorative arrangement, plates (10), constructed for example as silhouettes, are either placed together with their straight backs (12) or placed against a wall or a doorpost. In this case, the plates (10) can be constructed with hook-shaped recesses (14), into which elastic holding rings (22) can be inserted. However, it is also possible to attach decorative plates via holding elements, in which slots are constructed. The plates can be set up and used in various ways, for example in the manner of a fan as a cloakroom stand, as wall or corner coverings, with a tray as a dumb waiter, as a shelf, as a towel holder, etc. <IMAGE>
Patent DE-3209709-A1 (DE)
Title: Machine for producing necklaces
Inventor: RENZO BERTINO
IPC: A44C27/00
Filed: 1982-03-17
Abstract: A machine for the fully automatic production of rope necklaces made of metal wire comprises a spindle for winding the metal wire in a helical line, a movable pincer for gripping the outermost winding of the wire coil in each case, a rotating cutting device for cutting the outermost winding from the coil along a plane, an open chain link remaining in the pincer, and a holding and advancing device with an elastic holding chuck, in which the chain which has already been produced is retained while the pincer fits a new link onto the chain in each case and closes it. The elastic holding chuck can be moved forwards and backwards in the axial direction in each case by the dimension of the pitch of the chain and can be advanced stepwise by a twelfth of a rotation in each case in order to move the chain link which was joined on last into the position previously occupied by the preceding link, in which position a further chain link can then be joined on.
Patent DE-3210680-A1 (DE)
Title: Connecting cage for reinforcing reinforced-concrete constructions and its use
IPC: E04C5/06
Filed: 1982-03-23
Abstract: A connecting cage for reinforcing reinforced-concrete constructions has a number of identical stirrups (1) which are arranged parallel to one another, are bent in the shape of a hairpin and are non-detachably connected by at least three bars (6, 7, 8; 12) lying in two planes arranged at right angles to one another, in such a way that in building transitions at least two such connecting cages (10 and 14), capable of factory prefabrication, can be fitted together. This reinforcing element is designed as a mechanically producible connecting cage which makes it possible to reinforce the transitions in buildings in a constructionally correct manner and a simple and efficient manner. <IMAGE>
Patent DE-3212319-A1 (DE)
Title: Dry massage with a hydraulic jet
Inventor: CAHN GERHARD
IPC: A47C27/08
Filed: 1982-04-02
Abstract: The invention relates to a massage device in the form of a mattress-shaped cushion filled with water. Pipes with outlet nozzles which are directed upwards and through which the water is forced outwards by a circulation pump are laid in this cushion. Similarly to underwater hydraulic jet massage, this generates a massaging effect on the lying surface of the cushion. However, in contrast to normal underwater hydraulic jet massage there is no hydrostatic pressure in this case.
Patent DE-3214347-A1 (DE)
Title: Connection-free toilet cubicle closable by a movable door
Inventor: BAUER HELMUTH
IPC: E03D5/06
Filed: 1982-04-19
Abstract: A connection-free toilet cubicle, the door of which is connected to a control device for actuating the flushing pump in such a way that the flushing is actuated when the door is opened. The control device acts, via a coupling acting on one side, on the mechanical actuating device, used to actuate the flushing as desired, in the direction of the flushing position, so that when the actuating device is moved into the flushing position the movement is not transmitted to the control device.
Patent DE-3220478-A1 (DE)
Title: Nozzle for the spraying of liquid spray material
Inventor: SCHRAVEN GERHARD
IPC: B05B1/06
Filed: 1982-05-29
Abstract: To improve the spray stream characteristics of a nozzle, it is proposed that this is assembled from a pre-atomiser disc (1), an essentially ellipsoidal part (2) and a tubular part (3) with oval or elliptical cross-section which ends with a barrel-shaped or tunnel-shaped nozzle tip (4) having the elliptical outlet opening. <IMAGE>
Patent DE-3220525-A1 (DE)
Title: Substituted diphenyl ethers, their preparation, and their use as herbicides
Inventor: FOERSTER HEINZ DR
IPC: C07D273/01
Filed: 1982-06-01
Abstract: Novel substituted diphenyl ethers of the formula <IMAGE> in which X<1> represents hydrogen, fluorine, chlorine, bromine, iodine, nitro or cyano, X<2> represents hydrogen, fluorine, chlorine, bromine or iodine, X represents oxygen, a CO-O group or the group of the formula <IMAGE>, R<1>, R<2>, R<5> and R<6> independently of one another represent hydrogen or C1-C5-alkyl, R<3> and R<4> together represent C1-C3-alkanediyl or R<3> and R<2> together represent C1-C3-alkanediyl and R<4> in this event represents hydrogen or C1-C5-alkyl, Y represents oxygen, sulphur, a -NH group or a -CO-O group, m represents the numbers 1, 2 or 3, n represents the numbers 0 or 1 and p represents the numbers 1, 2 or 3, a plurality of processes for the preparation of the substances according to the invention and their use as herbicides, novel starting materials for the preparation of the compounds according to the invention, and the synthesis of these novel starting materials.
Patent DE-3220555-A1 (DE)
Title: Process for the preparation of formic acid
Inventor: MOISEEV ILJA IOSIFOVIC
IPC: C07C51/09
Filed: 1982-06-01
Abstract: In a process for the hydrolysis of methyl formate with water at a molar ratio of 1:1 to 1:3 by heating in the presence of a catalyst of the acid type with a continuous method of operation, the hydrolysis is carried out in a vertical two-phase column reactor at atmospheric pressure with introduction of water into the upper zone of the reactor, which is packed with a strongly basic sulphocation exchanger based on a copolymer of styrene and 2 to 8% by weight of divinylbenzene as the catalyst, and of methyl formate into the lower zone of the reactor in countercurrent. In the upper zone of the reactor, a temperature of 60 to 100 DEG C is maintained and at the same time a mixture of unreacted methyl formate and methanol formed is led off from the upper zone. In the lower zone, the hydrolysis is carried out autocatalytically in the presence of the formic acid from the upper zone at a pH of less than 1.9 and a temperature of 100 to 107 DEG C. In this way, 70 to 99% of the methanol formed is derived from the upper zone of the reactor and 1 to 30% methanol from the lower zone of the reactor.
Patent DE-3223895-A1 (DE)
Title: Method for fastening a facing leaf and bridging sleeve for carrying out the method
Inventor: JAEKEL KLAUS
IPC: E04G23/02
Filed: 1982-06-26
Abstract: A method for renovating façades is described, in which holes (11) are made through the facing leaf (2) into the supporting leaf (1) arranged at a distance behind the latter, the holes (11) in the supporting leaf (1) having a shoulder (13) which extends radially inwards and against which a bridging sleeve (4), which bridges the interspace (3) between the supporting leaf (1) and the facing leaf (2), is pressed. After insertion of the bridging sleeve (4), the latter is axially shortened with the aid of an upsetting tool, so that a circumferential drip nose (17) is formed in the region of a thin-wall zone (9). <IMAGE>
Patent DE-3224806-A1 (DE)
Title: Furniture glider
Inventor: HAESSLER WERNER
IPC: F16B12/46
Filed: 1982-07-02
Abstract: The invention relates to a furniture glider for the standing surfaces of furniture, in particular for corner connections of container furniture. The intention of the invention is to save material and working time and, at the same time, to improve the quality of corner connections. The object to be achieved was to provide a furniture glider which effectively prevents splitting of the narrow surfaces, primarily in the use of board-type materials made of wooden particles, and stabilises the corner connections at the same time. The object is achieved by a furniture glider which consists of an at least two-limbed baseplate which is rounded at the edges and has means for gripping round the narrow surfaces of the furniture parts and journals engaging in blind holes. The invention can be used in the furniture industry. <IMAGE>